Electric laundry-roll.



W. S. HADAWAY, JR.

ELECTRIC LAUNDRY ROLL.

APPLICATION FILED MAR.9. 1914.

1,156,223.. 4 Patented Oct. 12, 1915.

3 SHEETS-SHEET ll l K g A rromvn W S. HADAWAY, JR.

ELECTRIC LAUNDRY ROLL.

APPLICATION FILED MAR. 9. 1914.

1,156,223. Patented 0015.12, 1915.

3 SHEETS-SHEET 2.

WITNESSES 5 I By W W. S. HADAWAY, 111.

ELECTRIC LAUNDRY ROLL.

APPLICATION FILED MAR. 9. 1914. 1,156,223.

INVENTOR Q 1 f 1111111 GGCK 'ATTOR/VEV' j. WITNESSES 5%%W% UNITED s'ra s PATENT ornion. v

wi LI AMfs. HaDAwAY, JR, on NEW nooHnLLn, NEW YORK.

V ELECTRIC LAUNDRY-ROLL.

To all whom it may concern:

' Be it known that 1, WILLIAM S. HADAWAY, Jr., a citizen of the United States of America, and a resident of New Rochelle, Vestchester county, and State of New York, have invented certain new and" useful Improvementsin Electric Laundry-Rolls, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof My invention relates to electric heaters, and particularly to such as are adapted for imparting heat to a laundry roll'or similar device.

In my copending application Serial No.- 791,935 filed September 26, 1913,v T have shown anddescribed a laundry roll and a heater therefor of the same'general' character asthat of iny present invention.

One object of my inventionis to provide a light, durable and inexpensive heater of the character above indicated, and suitable meansfor supporting it within a hollow, cylindrical laundry roll.

Another object is to provide a heater structure embodying bus-bars which also have the function of truss-rods and a plurality of detachable and interchangeable radiant heater units, such as are adapted for use in heaters of various difierent sizes and types and are not'necessarily peculiar to the understood, I will describe tlflGSlHlG in the following specification'and; then point out the novel features thereof in appended claims. I

' Referring to the drawings: Figure 1 is an elevation in longitudinal-section, of a laun-' dry roll and heater arranged and constructed in accordance with my invention. An end elevation of the same device, with the end cap re1noved, is shown in Fig. 2. Figs. 3 and 4 are transverse sectional elevations, taken respectively, on the lines 3-3 and 4-4 of Fig. 1. A diagrammatic view of the circuit connections of the heater is shown in Fig. 5. Fig. 6 is a view corresponding to Fig. 1,.of a modified laundry roll heater structure, applied to 'a slightly different type of machine. V r '7 The structure shownin Figs. 1 to l inelusive, to which special referencemaymow Specification of Letters Patent.

Patented 001;. 12, 1915.

Application filed March 9, 1914. Serial No. 823,371.

be had, comprises a relatively long, hollow cylindrical laundry roll 10 which forms a part of a laundry machine (not shown), and I is adapted to be rotated; and a relatively stationary electric heater which extends into the roll from its outer end and is adapted to impart heat thereto. I The heater is supported in any suitable manner; and it comprises in general an end bracket 15, and end ring '20 secured thereto, a central rod 25, spaced disks 30, combined truss-rods and bus-bars 35, and a plurality of heater units 10.

The end ring 20 has lugs 20 and afiange 21 which fits loosely into an annular projection 16 of the stationary bracket. The

bracket has correspondingly located lugs 15 through which adjusting and clamping screws extend. The rod 25 is screwed into a hub 22 of the endring and projects there from as shown in Fig. 1. A wiper-ring16 of asbestos board or likematerial, is secured to the end of the roll 10 and is fittedover the cylindrical surface of the annular flange 16 of the bracket. By this means the heat from within the roll is not permitted to escape by convection and the efiiciency of the device is thus improved.

The disks 30 are preferably formed of sheet metal. and are mounted on the rod 25. They are spaced apart and clamped in position on the rod by means of spacing and clampingsleeves 26, and a nut 27 which is screwed onto the end of the rod and presses the sleeve sections together.

The disk 30 which .is secured nearer the outer. end of the rod 25, is shown in'Fig. 1 as provided with single contact sockets 31, each of which is adapted to receive a contact plug forminga part of theheater. unittO. vThe other disk is shown "as provided withv double 7 1 of Fig. 1, is included as best adapted to illustrate the invention although as will shortly appear the disks and their attached parts are similar to each other. By referenceto. Fig.

3, it is evident that there are eight sockets on the'side of the disk, adjacent to the end of the roll, whereas as shown in Fig. 4 there are four sockets on the side of the disk adjacentto the center of the roll.

As indicated in the diagram ofFig. 5:,

there are four double sockets and four single sockets on each disk, and consequently when a heater unit is mounted in each of its sockets, eight units extend from each disk toward the adjacent end of the roll, while four units extend from each disk toward the center of the roll. The sockets are uniformly spaced on the disks and they are so placed relative to each other and to the shaft 25 that a staggered relation exists between the eight units in the center of the roll.

The number of units is of course immaterial to my invention and any suitable combination may be employed.

The bus-bars 35 serve not only as electrical conductors but also serve as truss-rods or supports to reinforce the central rod 25 and stiifen the heater. The bus-bars are composed of sections 35 and 35. Each of the sections 35* extends through a hole in the end ring 20 and is. provided with terminal binding nuts 36. It is insulated from the disk in a well known manner, by insulating washers 87 and an insulating sleeve 38. A clamping nut 39 cooperates with one of the binding nuts 36 to establish a rigid mechanical connection between the disk and the busbars. Each of the disks 30 is perforated and metal bushings 41 extend through the holes and are mechanically secured to the disks by clamping nuts 42. Nevertheless they are electrically insulated from it by washers and bushings 33 of insulating material.

The bus-bar sections are interconnected and mechanically united by being screwed into the respective ends of the bushings 41 on one of the disks, the free ends of the sections 35 being screwed into the bushings on the other disk. As clearly shown on the diagram of Fig. 5, the circuit connections for the several units are all established through the bus-bars and circuit conductors are merely led into the hollow bracket 15, which is closed by the removable cap 16, and attached to the ends of the bus-bars by means of the binding nuts 36.

The bushings 41 are sufliciently long to support binding nuts 34: which cooperate with the clamping nuts 12 to provide a ready means for establishing a circuit connection from a bus-bar to one or more of the units; for example, the connectors 34: and 342 are arranged as clearly shown in Figs. 3 and 4: with disks or washers 8& of conducting material which are clamped to the bushing as above indicated, and contact members 34 which are attached to the sockets.

Each of the single sockets corresponds substantially to that shown in a copending application serial No. 791,936 filed September 26, 1913, by Josef Amon and myself and need not be described in detail. Each of the double socket structures comprises two apertured sockets 50, terminals 51 and 52, insulating washers separating one of the terminals from the two sockets and a single central rivet 53 for securing the second terminal in contact with one of the sockets and clamping the insulating washers in position, said central rivet constituting an independent circuit contact within each socket.

The heater units 40 are each provided with a. plug 10 which is adapted to coiiperate with one of the sockets and may otherwise be constructed in any suitable manner. I prefer however, to utilize a structure similar to that shown and described in my copending application Serial No. 791,931, filed September 26, 1913.

The circuit connections may obviously be varied to adapt the heater for use on circuits of unlike voltages and since the circuit connections in themselves form no part of my present invention, a detailed description is superfluous.

\Vhere the laundry roll is relatively short the heater shown in Fig. 6 may be employed. This comprises a single disk 60 to which is secured a plurality of sockets 61, a heater unit 40 being removably secured in each socket and extending into the roll from one end. This structure is well adapted for use with collar and cuff rolls which have their outer ends closed. designates a roll of this character and is supported by a central shaft 66 which extends beyond the inner end of the roll and is supported in a laundry machine bearing 67, the disk 60 being apertured to permit the shaft to extend through it.

The disk is supported by an annularfiange 63 of a stationary end bracket 64 which is hollow to constitute a terminal box and is secured to a pipe connection 68 or other pro j ection from the laundry machine frame.

A padded pressure roll such as, for example, the roll 69 of Fig. 6, is arranged to coiiperate with the cvlindrical surface of the r0 1.

Structural variations may be effected within the spirit and scope of my invention, and I intend that only such limitations be imposed as are indicated in the appended claims.

What I claim is:

1. A laundry roll heater comprising a central supporting rod, sheet metal disks secured to the rod and spaced apart thereon, a

plurality of combined truss-rods and busbars uniformly spaced about the central rod, each connected to and electrically insulated from the disks, a plurality of contact sockets secured to the disks and extending in parallelism with the bus-bars, and heating units having contact plugs removably mounted in the sockets.

2. A laundry roll heater comprising a plurality of substantially parallel bus-bars, means near one end for supporting the busa sheet metal disk secured to the bus-bars bars, spaced disks secured to and supported by the bus-bars but electrically separated therefrom, contact sockets mounted near the periphery of the disk, and heating units having contact plugs cooperating With the sockets.

allelism With the bus-bars, said bus-barsconstituting truss-rods for the heater.

4. A laundry roll heater comprising a plurality of substantially parallel bus-bars,

and electricallyinsu'lated therefrom, a pair of contact sockets mounted near the periphery of the disk on opposite sides thereof and comprising a single central fastening means extending through the disk and constituting an independent contact Within each of the sockets.

5. A heater comprising a plurality of bus bars, means for supporting the bus bars, spaced members secured to and supported by the bus bars but electrically separated therefrom, and electric heating units removably secured to the members and electrically connected to the bus bars.

6. A laundry roll heater comprising a plurality of substantially parallel bus bars, means near one end for supporting the bus bars, spaced disks secured to and supported by the bus bars but electrically separated therefrom, and electric heating units removably secured to the disks.

7. A laundry roll heater comprising a plurality of substantially parallel bus bars,

means near one end for supporting the bus bars, spaced disks secured to and supported by the bus bars but electrically separated therefrom, contact sockets mounted near the periphery ofthe disks, and electric heating units removably mounted in the sockets.

In Witness whereof, I have hereunto set my hand in the presence of two subscribing Witnesses, this 5th day of March, 1914:.

WILLIAM S. HADANAY, JR.

Witnesses:

R. J. DEARBORN, F. GRAVES.

.Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

